CN109130977B - System and method for linkage adjustment of isofix and backrest of child safety seat - Google Patents

System and method for linkage adjustment of isofix and backrest of child safety seat Download PDF

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Publication number
CN109130977B
CN109130977B CN201811025985.8A CN201811025985A CN109130977B CN 109130977 B CN109130977 B CN 109130977B CN 201811025985 A CN201811025985 A CN 201811025985A CN 109130977 B CN109130977 B CN 109130977B
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safety seat
backrest
seat
child safety
monitoring signal
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CN109130977A (en
Inventor
林浩
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Shanghai Woyoo Electronic Technology Co ltd
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Shanghai Woyoo Electronic Technology Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/005—Arrangement or mounting of seats in vehicles, e.g. dismountable auxiliary seats
    • B60N2/01—Arrangement of seats relative to one another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2875—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle inclinable, as a whole or partially
    • B60N2/2878—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle inclinable, as a whole or partially the back-rest being inclinable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • B60N2/02258—Electric motors therefor characterised by the mounting of the electric motor for adjusting the seat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B60N2/0272—Non-manual adjustments, e.g. with electrical operation with logic circuits using sensors or detectors for detecting the position of seat parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2884—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle with protection systems against abnormal g-forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2887—Fixation to a transversal anchorage bar, e.g. isofix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2887—Fixation to a transversal anchorage bar, e.g. isofix
    • B60N2/2893—Fixation to a transversal anchorage bar, e.g. isofix coupled to the seat sub-frame
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/362—Composites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • B60N2/02253—Electric motors therefor characterised by the transmission between the electric motor and the seat or seat parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

The invention discloses a system and a method for linkage adjustment of a child safety seat isofix and a backrest. According to the invention, the child safety seat is connected with the automobile seat through the isofix device, the backrest of the child safety seat is tightly attached to the backrest of the automobile seat by adjusting the backrest angle of the child safety seat, so that the child safety seat and the automobile seat form rigid connection, when the whole automobile is braked or even collided, the angle adjuster structure of the child safety seat and the angle adjuster structure of the automobile seat act together to play the same anti-overturning effect as the upper pull belt or the supporting leg, and the acting forces of the two groups of angle adjusters can better protect children.

Description

System and method for linkage adjustment of isofix and backrest of child safety seat
The invention relates to a divisional application of a Chinese patent application with an application number of 201710010890.8, namely a system and a method for linkage adjustment of an isofix and a backrest of a child safety seat (application date: 2017, 01, 06).
Technical Field
The invention relates to the field of function adjustment of child safety seats, in particular to a system and a method for linkage adjustment of isofix and a backrest of a child safety seat.
Background
With the development of society, the probability of children riding private cars increases dramatically. The injury to children caused by automobile collision accidents is huge, and the riding safety of children gradually draws attention of people.
A child safety seat for a vehicle belongs to one of child restraint systems, and plays an important role in preventing death or serious injury of children in a collision accident. The majority of common automobile child safety seats are independent additional devices, and only play a role in fixing the bodies of children, avoiding collision damage during driving and playing a role in corresponding protection when an accident occurs.
In normal driving, even if a child does not use the child seat, the child can be accompanied by an adult to ensure basic safety, accidents are small-probability events, and particularly the child is completely in an idle state when no child sits, so that the problem that the seat is in a waste state or not in most of time is caused, and the seat is even discarded. How to exert the function of the safety seat to a greater extent and improve the time range of the efficacy of the safety seat is a problem which needs to be solved urgently.
In addition to common safety seats in the market, some manufacturers start to release products with intelligent control functions, but the pure functionality of the safety seats is improved, so that the effect of exerting the efficacy of the safety seats is not achieved. For example, chinese patent application (application No. 2012102010511) discloses a child safety seat, a child safety seat self-rescue system and a method, wherein a self-rescue device is provided on the child safety seat, and the child safety seat self-rescue device includes a controller, an identification sensing system, and a life support system. The invention is limited to the life support field only in extreme accident situations. The Chinese patent application (application number 2013100276572) provides an integrated automobile safety seat height adjusting method and device, and belongs to the field of automobile safety design. Mainly for reducing the injury of the child passenger in the automobile collision accident. Further, chinese patent application No. 2012105382427 and chinese patent application No. 201410331191X are both improved in terms of child securing means, buckle detection control, and the like.
Child safety seat cushion and back contained angle on the existing market are 90, can't closely laminate with car seat, lead to the acceleration that child safety seat can produce forward or backward upset when car braking even whole car collision for child safety seat atress grow needs last stretching strap or supporting leg as the support of anti upset moment of torsion.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a system and a method for linkage adjustment of isofix and a backrest of a child safety seat, wherein the backrest of the child safety seat is more tightly attached to an automobile seat through linkage adjustment of a backrest angle adjuster and an isofix device of the child safety seat.
In order to achieve the technical effect, the invention discloses a system for linkage adjustment of an isofix and a backrest of a child safety seat, which comprises:
the safety seat control unit is used for receiving a first monitoring signal related to an isofix device of the child safety seat and a second monitoring signal related to a backrest of the child safety seat, and analyzing and processing the first monitoring signal and the second monitoring signal according to a set rule to generate an operation instruction;
the first driving unit is in signal connection with the safety seat control unit and is used for controlling the isofix device to actuate according to the operation instruction; and
and the second driving unit is in signal connection with the safety seat control unit and is used for controlling the backrest to actuate according to the operation instruction.
The system for linkage adjustment of the isofix and the backrest of the child safety seat is further improved in that the first driving unit is an isofix motor which is in driving connection with the isofix device; the second driving unit is an angle adjuster motor which is in driving connection with an angle adjuster, and the angle adjuster is installed between a backrest and a seat cushion of the child safety seat and used for controlling relative rotation between the backrest and the seat cushion.
The system for the coordinated adjustment of the isofix and backrest of the child safety seat is further improved in that the safety seat control unit obtains the first monitoring signal by monitoring the current signal of the isofix motor; the safety seat control unit obtains the second monitoring signal by monitoring a current signal of the angle adjuster motor.
The isofix and backrest linkage adjusting system of the child safety seat is further improved in that the isofix device comprises a mounting bracket and an isofix interface arranged on the mounting bracket, the mounting bracket is mounted on a cushion of the child safety seat through a push rod, and the mounting bracket is pushed and pulled to slide along the cushion under the action of the push rod; the first driving unit is installed on the cushion and is in driving connection with the push rod.
In a further improvement of the system for the coordinated adjustment of the isofix and the backrest of the child safety seat, the system further comprises:
the tension sensor is connected between the push rod and the mounting bracket and used for monitoring tension change between the push rod and the mounting bracket in real time to form a first monitoring signal;
and the pressure sensor is arranged on the backrest of the child safety seat and used for monitoring the pressure change of the backrest in real time so as to form the second monitoring signal.
In a further improvement of the system for the coordinated adjustment of the isofix and the backrest of the child safety seat, the system further comprises
The displacement sensor is fixed on the fixed section of the push rod, and is provided with an induction sliding rod in a sliding manner, and the induction sliding rod is connected to the mounting bracket and used for monitoring the displacement change of the mounting bracket in real time to form the first monitoring signal;
and the pressure sensor is arranged on the backrest of the child safety seat and used for monitoring the pressure change of the backrest in real time to form the second monitoring signal.
The further improvement of the system that children's safety seat isofix and back linkage were adjusted lies in, the first end fixed connection of angle modulation ware motor in children's safety seat's back, the second end of angle modulation ware motor is equipped with the drive runner, set up the dysmorphism jack of shape adaptation in the dabber of angle modulation ware on the drive runner, the dabber is inserted and is located in the dysmorphism jack and along the rotation of drive runner rotates, in order to drive the angle modulation ware rotates.
A further improvement of the system for the coordinated adjustment of the isofix and backrest of a child safety seat is that the safety seat control unit comprises:
a signal receiving module, configured to receive the first monitoring signal and the second monitoring signal;
the signal processing module is connected with the signal receiving module and used for analyzing and processing according to a set rule so as to generate an operation instruction; and
and the signal output module is connected with the information processing module and used for outputting the operation instruction.
A further improvement of the child safety seat isofix and backrest linkage adjustment system is that the safety seat control unit further comprises:
the information storage module is connected with the signal processing module and used for recording the first monitoring signal and the second monitoring signal;
the wireless communication module is connected with the information storage module and used for sending the first monitoring signal and the second monitoring signal recorded in the information storage module to the outside;
the wireless communication module is further connected to a vehicle-mounted computer of the automobile or a network cloud service platform through a network.
The invention discloses a method for linkage adjustment of an isofix and a backrest of a child safety seat, which comprises the following steps:
providing a safety seat control unit, and after receiving a first monitoring signal related to an isofix device of the child safety seat and a second monitoring signal related to a backrest of the child safety seat, analyzing and processing the first monitoring signal and the second monitoring signal according to a set rule to generate an operation instruction;
providing a first driving unit, and driving the isofix device to actuate according to the operation instruction; and
and providing a second driving unit, and driving the angle adjuster of the child installation seat to actuate according to the operation instruction so as to enable the backrest and the seat cushion of the child safety seat to rotate relatively.
Due to the adoption of the technical scheme, the invention has the following beneficial effects: child safety seat passes through isofix device with car seat and is connected, back angle through adjusting child safety seat, make child safety seat's back and car seat back closely laminate, make child safety seat and car seat form rigid connection, when whole car braking even collide, child safety seat angle modulation ware structure and car seat angle modulation ware structure combined action, play the effect of anti upset equally with last stretching strap or supporting leg, the effort of two sets of angle modulation ware, can make children obtain better protection.
Drawings
Fig. 1 is a schematic view of the linkage adjustment system of the child safety seat isofix and the backrest of the present invention.
FIG. 2 is a functional block diagram of the system of the present invention.
FIG. 3 is a partially enlarged schematic view of the system of the present invention.
Fig. 4 is a schematic diagram of a second driving unit and a recliner in the system of the present invention.
Fig. 5 is a schematic diagram of a recliner in the system of the present invention.
Fig. 6-8 are operation diagrams of the isofix device linkage backrest in the system of the present invention.
Fig. 9-11 are operation diagrams of the backrest linkage isofix device in the system of the present invention.
Fig. 12 is a schematic view of the installation structure of the tension sensor in the system of the present invention.
Fig. 13 is an exploded view of the mounting structure of the tension sensor in the system of the present invention.
Fig. 14 is a schematic view of the mounting structure of the displacement sensor in the system of the present invention.
Fig. 15 is an exploded view of the mounting structure of the displacement sensor in the system of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
The invention mainly provides a safety monitoring system and a safety monitoring method for a child safety seat, which can judge and analyze the environment in a car and the vital sign state of a child according to a state acquisition module on the child safety seat when the child gets in the car so as to remind parents of the current state of the child, and can interact with a vehicle-mounted computer so as to adjust the environment in the car.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
First, referring to fig. 1 to 3, the system for adjusting the isofix and the backrest of the child safety seat in a linkage manner mainly comprises a safety seat control unit 13, and a first driving unit 14 and a second driving unit 15 which are connected to the safety seat control unit 13 in a signal manner.
Among them, the isofix device (child safety seat fixing system) is a new standard for the placement of child seats in automobiles, and its function is to make the installation of child seats quick and simple, rigid connection, and safer, and the child seats equipped with isofix can be easily fixed in the isofix interfaces of automobiles, and increase safety.
The isofix device comprises a mounting bracket 16 and isofix interfaces 161 arranged on the mounting bracket 16, wherein the mounting bracket 16 is mounted on a cushion framework 21 of a cushion of the child safety seat through a push rod 162, two sides of the mounting bracket 16 are slidably arranged on two sides of the cushion framework 21, and the mounting bracket 16 is pushed and pulled to slide along the cushion framework 21 under the action of the push rod 162. The pusher device 162 may employ a rack linkage or a hydraulic drive. The isofix interface 161 is secured in use in an isofix docking interface of a car seat.
The first driving unit 14 employs an isofix motor, is mounted on the isofix device and drives a push rod 162 connected to the isofix device, and the actuation of the isofix motor drives the push rod 162 to make a telescopic motion so as to push and pull the mounting bracket 16 to drive the isofix interface 161 to extend or retract, as shown in fig. 1 and 3.
Referring to fig. 4 and 5, the second driving unit 15 is a recliner motor for driving a recliner 23 connected to the child safety seat, and the recliner 23 of the child safety seat is installed between the backrest and the seat cushion of the child safety seat and used for controlling the relative rotation between the backrest and the seat cushion. The first end of the angle adjuster motor is fixedly connected to the backrest 22 of the child safety seat, the second end of the angle adjuster motor is provided with a driving rotating wheel, the driving rotating wheel is provided with a special-shaped jack 152 of which the shape is matched with that of a mandrel 231 of the angle adjuster 23, the special-shaped jack 152 in the embodiment is a square hole, and the mandrel 231 is a square shaft. The core shaft 231 is inserted into the special-shaped insertion hole 152 and rotates along with the rotation of the driving wheel to drive the angle adjuster 23 to rotate, so as to drive the backrest 22 and the seat cushion frame 21 of the child safety seat to rotate relatively, thereby achieving the effect of adjusting the angle of the backrest 22.
The angle adjuster is a device which is arranged on an automobile seat and realizes the adjustment of the angle of a seat backrest. The device generally consists of a back link plate, a seat link plate, a core, a hand wheel or adjustment handle, a return spring, etc. (in some low cost chairs, the back link plate and the seat link plate are generally integrated into the back frame and the chair frame). The continuity of the angle adjustment can be divided into a step adjustment angle adjuster and a stepless adjustment angle adjuster.
The safety seat Control Unit 13(Electronic Control Unit, ECU for short) obtains the first monitoring signal by monitoring the current signal of the isofix motor, and obtains the second monitoring signal by monitoring the current signal of the recliner motor.
The safety seat control unit 13 receives the first monitoring signal and the second monitoring signal, and performs analysis processing according to a predetermined rule to generate an operation command.
The first driving unit 14 is in signal connection with the safety seat control unit 13, and is used for controlling the isofix device to actuate according to the operation instruction generated by the safety seat control unit 13;
the second driving unit 15 is connected to the safety seat control unit 13 by signals, and is used for controlling the backrest 22 to actuate according to the operation command generated by the safety seat control unit 13.
Further, the safety seat control unit 13 in the system of the present invention is composed of the following functional modules, which mainly include:
a signal receiving module 131 for receiving a first monitoring signal associated with the isofix apparatus and a second monitoring signal associated with the backrest;
a signal processing module 132 connected to the signal receiving module 131 for performing analysis processing according to a predetermined rule to generate an operation command;
a signal output module 133, connected to the information processing module 132, for outputting the operation instruction generated by the signal processing module 132;
an information storage module 134, connected to the signal processing module 132, for recording a first monitoring signal and a second monitoring signal corresponding to the isofix device and the backrest when they are actuated to specific positions;
a wireless communication module 135, connected to the information storage module 134, for sending the first monitoring signal and the second monitoring signal recorded in the information storage module to the outside;
the wireless communication module 135 is further connected to an on-board computer (Electronic Control Unit, ECU for short) or a network cloud service platform of the vehicle through a network, so as to perform information interaction through wifi, bluetooth, zigbee (network protocol), GPRS and other internet and internet of things data transmission methods.
The safety seat control unit is also provided with an alarm module (the alarm module is not shown in the figure), and the alarm module is connected with the signal processing module and used for detecting a crisis signal when the parameters of the first monitoring signal and the second monitoring signal exceed a safety range and sending alarm information to the outside after detecting the crisis signal. The alarm (such as a horn or a warning lamp) can be arranged on the child safety seat to detect alarm information sent by the alarm module, send out an alarm and inform a guardian; or the alarm module can be connected to the wireless communication module, and the wireless communication module is utilized to package and send the alarm information from the alarm module and the mechanical parameters in the information storage module to a vehicle-mounted computer or a network cloud service platform of the automobile.
The principle of implementation of the system for the coordinated adjustment of the isofix and backrest of the child safety seat according to the invention will be described in the following with three specific embodiments.
Example 1:
manually starting the isofix motor to drive the push rod of the isofix device to push out, pushing the isofix device out of any position by the push rod, starting the isofix motor at the moment, sending a current signal to form a first monitoring signal, and outputting the first monitoring signal outwards; the safety seat control unit (ECU) receives the first monitoring signal, automatically starts the angle adjuster motor, drives the angle adjuster to rotate, adjusts the backrest of the child safety seat backwards, when the backrest of the child safety seat is tightly attached to the backrest of the automobile seat, the angle adjuster motor can generate a stalling phenomenon and generate a stalling current (the stalling current is far larger than the working current of the angle adjuster motor), and the ECU can judge that the backrest of the child safety seat is adjusted to a correct position by detecting the stalling current of the angle adjuster motor.
Similarly, the angle adjuster motor is manually started to drive the angle adjuster to rotate to drive the backrest of the child safety seat to rotate, and the angle adjuster motor sends a current signal to form a second monitoring signal and outputs the second monitoring signal outwards; the safety seat control unit (ECU) receives the second monitoring signal, automatically starts the isofix motor, adjusts the extending length of the push rod of the isofix device, when the backrest of the child safety seat is tightly attached to the backrest of the automobile seat, the isofix motor can generate a stalling phenomenon and generate a stalling current (the stalling current is far larger than the working current of the isofix motor), and the ECU can know whether the push rod of the isofix device reaches the correct extending length or not by judging the stalling current of the isofix motor.
Example 2:
as shown in fig. 6 to 11, a tension sensor 110 is provided, the tension sensor 110 is connected to the tension sensor between the push rod of the isofix device and the mounting bracket thereof, and is used for monitoring tension change between the push rod and the mounting bracket in real time to form a first monitoring signal;
a pressure sensor 120 is provided, wherein the pressure sensor 120 is provided on a backrest of the child safety seat, and is used for monitoring pressure change generated by the backrest being acted by the backrest of the car seat in real time to form the second monitoring signal.
As shown in fig. 12 and 13, the tension sensor 17 is disposed between the push rod 162 of the isofix device and the mounting bracket 16, studs are disposed at two ends of the tension sensor 17, a threaded hole is disposed at the front end of the push rod, the push rod is fixed to one end of the tension sensor 17 through threads, a round hole is disposed on the mounting bracket 16, and a stud at the other end of the tension sensor 17 penetrates through the round hole and is fixed to the mounting bracket 16 through a nut.
As shown in fig. 6 to 8, when the push rod is manually started, the push rod pushes the mounting bracket out of any position, as shown in the actuation diagrams of fig. 6 to 7, the tension sensor 110 is triggered to send a first monitoring signal; when the safety seat control unit (ECU) receives the first monitoring signal, the angle regulator motor is automatically started, the angle regulator 23 is driven to rotate, the backrest 22 of the child safety seat is adjusted backwards, and when the backrest 22 of the child safety seat is tightly attached to the automobile seat backrest 20, the pressure sensor 120 arranged on the backrest 22 is acted by the automobile seat backrest 20 to send out a second monitoring signal; the ECU can determine that the back of the child safety seat is adjusted to the correct position by detecting the second monitoring signal sent by the pressure sensor 120 arranged on the back 22, and then send an operation instruction of stopping the actuation to the motor of the angle adjuster to stop the rotation of the angle adjuster, as shown in fig. 8, to complete the linkage adjustment of the isofix device to the back 22.
Referring to fig. 9 to 11, the angle adjuster motor is adjusted and started manually, and as shown in the actuation diagrams of fig. 9 to 10, the pressure sensor 120 is triggered to send a second monitoring signal; the safety seat control unit (ECU) receives the second monitoring signal, automatically starts the isofix motor, drives the push rod of the isofix device to push out, and adjusts the extending length of the push rod of the isofix device; when the backrest 22 of the child safety seat is tightly attached to the backrest 20 of the car seat, the tension sensor 110 detects the tension between the push rod and the mounting bracket and sends a first monitoring signal outwards; the ECU receives the first monitoring signal and determines whether the push rod reaches the correct extension length by determining the tension measured by the tension sensor 110, and then generates an operation instruction for stopping the actuation of the push rod to the isofix motor, as shown in fig. 11, to complete the linkage adjustment of the isofix device by the backrest 22.
In this embodiment, the isofix motor may be electrically connected to a safety seat control unit (ECU), the ECU is directly triggered by a current signal sent when the isofix motor is started, and the ECU automatically starts the recliner motor to perform subsequent recliner adjustment. Similarly, the angle adjuster motor can be electrically connected to a safety seat control unit (ECU), the ECU is directly triggered by a current signal sent when the angle adjuster motor is started, and the isofix motor is automatically started by the ECU so as to adjust the subsequent isofix device. The pressure sensor in this embodiment may also be disposed on the seat back of the car seat, as long as the pressure sensor is disposed on the contact surface between the child safety seat and the car seat.
Example 3:
providing a displacement sensor, wherein the displacement sensor 18 is fixed on a fixed section of a push rod 162 of the isofix device, a sensing slide bar 181 is slidably arranged on the displacement sensor 18, and the sensing slide bar 181 is connected to the mounting bracket 16 and is used for monitoring displacement change of the mounting bracket 16 in real time to form a first monitoring signal;
providing a pressure sensor which is arranged on a backrest of the child safety seat and used for monitoring the pressure change of the backrest in real time to form a second monitoring signal;
as shown in fig. 14 and fig. 15, displacement sensor 18 is fixed with the fixed section of push rod 162 through fixed block 19, the fixed section of push rod 162 is fixed on the cushion skeleton, the flexible section of push rod 162 is telescopically arranged in its fixed section and is connected to mounting bracket 16, fixed block 19 and push rod 162 and displacement sensor 18 interference fit, the front end of induction slide bar 181 of displacement sensor 18 is equipped with one section screw thread, be equipped with the round hole on isofix device's mounting bracket 16, induction slide bar 181 passes this round hole, mounting bracket 16 is fastened through two screw threads around the front and back.
When the push rod is manually started, the push rod 162 pushes the mounting bracket 16 out of any position to trigger the displacement sensor 18 to send a first monitoring signal, the ECU automatically starts the angle adjuster motor after receiving the first monitoring signal to adjust the backrest of the child safety seat backwards, and when the backrest of the child safety seat is tightly attached to the backrest of the automobile seat, the ECU can judge that the backrest of the child safety seat is adjusted to the correct position by detecting the pressure value of the pressure sensor arranged on the backrest.
The angle adjuster motor is started by manual adjustment, the isofix motor is automatically started by the ECU, the extension length of the push rod is adjusted, when the backrest of the child safety seat is tightly attached to the backrest of the automobile seat, the displacement of the mounting bracket is measured by the ECU through the judgment displacement sensor, and the ECU can know that the push rod extends to reach the correct extension length when the mounting bracket does not generate displacement any more.
In this embodiment, the isofix motor may be electrically connected to a safety seat control unit (ECU), the ECU is directly triggered by a current signal sent when the isofix motor is started, and the ECU automatically starts the recliner motor to perform subsequent recliner adjustment. Similarly, the angle adjuster motor can be electrically connected to a safety seat control unit (ECU), the ECU is directly triggered by a current signal sent when the angle adjuster motor is started, and the isofix motor is automatically started by the ECU so as to adjust the subsequent isofix device. The pressure sensor in this embodiment may also be disposed on the car seat, as long as the pressure sensor is disposed on the contact surface between the child safety seat and the car seat.
The invention relates to the field of function adjustment of child safety seats, in particular to a child safety seat which is more closely attached to an automobile seat through linkage adjustment of the backrest angle of the child safety seat and the extension length of an isofix device, by means of a pressure sensor or a tension sensor of an isofix device for detecting the current (torque) of a motor of the angle adjuster of the child safety seat or the contact surface of the motor and the isofix device, and inputs the data to the ECU (safety seat control unit) of the child safety seat, calculates the optimal supporting force and the corresponding supporting position which are given to the child seat by the backrest of the automobile seat, carries out shape and position analysis on the ECU of the child safety seat, judges the optimal sitting state and the optimal protection mode, and data are output to a vehicle-mounted computer, a cloud platform, a mobile terminal, a child safety seat emergency center and the like, so that safety and comfort of children when the children encounter general braking, emergency braking, passive braking and even collision of the whole vehicle in the using process are protected. For example, the data can control the explosion of the safety air bag of the whole vehicle or the explosion range of the safety air bag of the child safety seat, and can control the posture of the front seat or the rear seat, even the opening and closing of the window and the like in emergency.
The extending length of the isofix device can be measured by adopting an electric isofix, the backrest of the child seat or an angle adjuster can be rigidly combined with the automobile seat while the backrest of the child seat can be adjusted to any angle by jointly adjusting the electric backrest of the child seat and the electric isofix (the partial area of the backrest of the child seat and the isofix are rigidly connected with the automobile seat at any angle and the backrest of the automobile seat and an isofix steel wire, whether the isofix extending length and the elevation angle of the backrest can be determined by converting the monitoring of the current of the angle adjuster and the isofix push rod motor into the monitoring of the current, and the rigidity of the automobile seat is enhanced, the deformation degree of the adjusting chair is reduced when the automobile seat is impacted by external force, and the impact on the child seat is also reduced.
The following describes in detail a specific implementation method of the system for adjusting the linkage between the isofix and the backrest of the child safety seat according to the present invention with reference to specific embodiments, and the implementation method specifically includes the following steps:
s001: providing a safety seat control unit, and after receiving a first monitoring signal related to the isofix device and a second monitoring signal related to the backrest, analyzing and processing the first monitoring signal and the second monitoring signal according to a set rule to generate an operation instruction;
s002: providing a first driving unit, and driving the isofix device to actuate according to the operation instruction; and
s003: and providing a second driving unit, and driving the angle adjuster of the child installation seat to actuate according to the operation instruction so as to enable the backrest and the seat cushion of the child safety seat to rotate relatively.
It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A system for attaching a back of a child safety seat to a back of a car seat, comprising:
the safety seat control unit is used for receiving a first monitoring signal of an isofix device related to the child safety seat, and analyzing and processing the first monitoring signal according to a set rule to generate an operation instruction;
the first driving unit is in signal connection with the safety seat control unit and used for controlling the isofix device to do telescopic motion according to the operation instruction, so that the backrest of the child safety seat is tightly attached to the backrest of the automobile seat; or
And the second driving unit is in signal connection with the safety seat control unit and is used for controlling the backrest of the child safety seat to rotate relative to the seat cushion according to the operation instruction, so that the backrest of the child safety seat is tightly attached to the backrest of the automobile seat.
2. A system for conforming a back of a child safety seat to a back of a car seat according to claim 1 wherein: the first driving unit is an isofix motor and is in driving connection with the isofix device; the safety seat control unit obtains the first monitoring signal by monitoring a current signal of the isofix motor.
3. A system for conforming a back of a child safety seat to a back of a car seat according to claim 1 wherein: the first driving unit is an isofix motor and is in driving connection with the isofix device; the isofix device comprises an installation bracket and an isofix interface arranged on the installation bracket, wherein the installation bracket is arranged on a cushion of the child safety seat through a push rod, and the installation bracket is pushed and pulled to slide along the cushion under the action of the push rod; the first driving unit is arranged on the cushion and is connected with the push rod in a driving mode; the system further comprises:
the tension sensor is connected between the push rod and the mounting bracket and used for monitoring tension change between the push rod and the mounting bracket in real time to form a first monitoring signal; or
A displacement sensor is fixed in on the fixed segment of push rod, the last response slide bar that is equipped with of displacement sensor, the response slide bar connect in the installing support is used for real-time supervision the displacement change of installing support is in order to form first monitoring signal.
4. A system for conforming a back of a child safety seat to a back of a car seat according to claim 1 wherein the safety seat control unit comprises:
the signal receiving module is used for receiving the first monitoring signal;
the signal processing module is connected with the signal receiving module and used for analyzing and processing according to a set rule so as to generate an operation instruction;
the signal output module is connected with the signal processing module and used for outputting the operation instruction;
the information storage module is connected with the signal processing module and used for recording the first monitoring signal;
the wireless communication module is connected with the information storage module and used for sending the first monitoring signal recorded in the information storage module to the outside;
the wireless communication module is further connected to a vehicle-mounted computer of the automobile or a network cloud service platform through a network.
5. A system for attaching a back of a child safety seat to a back of a car seat, comprising:
the safety seat control unit is used for receiving a second monitoring signal related to a backrest of the child safety seat, and analyzing and processing the second monitoring signal according to a set rule to generate an operation instruction;
the first driving unit is in signal connection with the safety seat control unit and used for controlling the isofix device to do telescopic motion according to the operation instruction, so that the backrest of the child safety seat is tightly attached to the backrest of the automobile seat; or
And the second driving unit is in signal connection with the safety seat control unit and is used for controlling the backrest of the child safety seat to rotate relative to the seat cushion according to the operation instruction, so that the backrest of the child safety seat is tightly attached to the backrest of the automobile seat.
6. The system for conforming a back of a child safety seat to a back of a car seat according to claim 5 wherein: the second driving unit is an angle adjuster motor which is in driving connection with an angle adjuster, and the angle adjuster is installed between a backrest and a seat cushion of the child safety seat and used for controlling the relative rotation between the backrest and the seat cushion; the safety seat control unit obtains the second monitoring signal by monitoring a current signal of the angle adjuster motor.
7. The system for conforming a back of a child safety seat to a back of a vehicle seat as defined in claim 5 wherein said second drive unit is a recliner motor drivingly connected to a recliner, said recliner mounted between the back and the seat cushion of the child safety seat for controlling relative rotation between said back and said seat cushion; the system further comprises:
and the pressure sensor is arranged on the backrest of the child safety seat and used for monitoring the pressure change of the backrest in real time so as to form the second monitoring signal.
8. The system for conforming a back of a child safety seat to a back of a car seat according to claim 5 wherein the safety seat control unit comprises:
the signal receiving module is used for receiving the second monitoring signal;
the signal processing module is connected with the signal receiving module and used for analyzing and processing according to a set rule so as to generate an operation instruction; and
the signal output module is connected with the signal processing module and used for outputting the operation instruction;
the information storage module is connected with the signal processing module and used for recording the second monitoring signal;
the wireless communication module is connected with the information storage module and used for sending the second monitoring signal recorded in the information storage module to the outside;
the wireless communication module is further connected to a vehicle-mounted computer of the automobile or a network cloud service platform through a network.
9. A method of conforming a back of a child safety seat to a back of a car seat, comprising the steps of:
providing a safety seat control unit, and after receiving a first monitoring signal related to an isofix device of the child safety seat or a second monitoring signal related to a backrest of the child safety seat, analyzing and processing the first monitoring signal or the second monitoring signal according to a set rule to generate an operation instruction;
and providing a first driving unit, and driving the isofix device to do telescopic motion according to the operation instruction, so that the backrest of the child safety seat is clung to the backrest of the automobile seat.
10. A method of conforming a back of a child safety seat to a back of a car seat, comprising the steps of:
providing a safety seat control unit, and after receiving a first monitoring signal related to an isofix device of the child safety seat or a second monitoring signal related to a backrest of the child safety seat, analyzing and processing the first monitoring signal or the second monitoring signal according to a set rule to generate an operation instruction;
and providing a second driving unit, and controlling the backrest and the seat cushion of the child safety seat to rotate relatively according to the operation instruction so that the backrest of the child safety seat is tightly attached to the backrest of the automobile seat.
CN201811025985.8A 2017-01-06 2017-01-06 System and method for linkage adjustment of isofix and backrest of child safety seat Active CN109130977B (en)

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CN201710010890.8A CN106740310B (en) 2017-01-06 2017-01-06 The system and method that child safety seat isofix and back-rest linked are adjusted

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EP3444144A4 (en) 2020-01-15
EP3444144B1 (en) 2021-03-31
US20190160980A1 (en) 2019-05-30
CN106740310B (en) 2019-06-28
EP3444144A1 (en) 2019-02-20
WO2018126549A1 (en) 2018-07-12
CN109130977A (en) 2019-01-04
CN106740310A (en) 2017-05-31
ES2878328T3 (en) 2021-11-18

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